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List: ucsimm
Subject: Re: [uCsimm] miniLinux and Announcing an Industrial I/O board foruCsimm
From: "Sam Saprunoff" <sams2 () telusplanet ! net>
Date: 2000-02-24 16:13:16
[Download RAW message or body]
Thanks Tom for the correct interpretation of my sentence!
In regards to the term Industrial Grade, it was intended to be of an Industrial \
strength or features. I, by no means, intended it to be interpreted as having full \
Industrial temperature rating. However, why I say Industrial Strength (grade, type, \
etc) is:
1. It is not a commercial unit. The components used are of higher strength, \
durability, and/or greater temperature ranges (High quality, high insertion cycle \
connectors, etc). The components selected are not necessarily based upon the least \
expensive part for the job (i.e. lowest production cost was not my greatest \
concern... high reliability, ease and bullet-proof of installation, etc are my \
issues)
2. Since this device is to be used in a electrical "dirty" environment, the Vin \
section has additional protection circuitry to minimize problems. The exact \
environment is a large(36 floor) commercial office tower. This electrical "dirty" \
environment can (and usually does) carry over to the input section, the opto-inputs \
use a current-loop interface to minimize the effects of induced by this noise, etc. \
Hence, I can have longer cable runs, and less false alarms (none... hooray).
3. The device was designed for a specific application and for backward \
compatibility (where the uCsimm is not currently used). Thus, the temperature range \
of the uCsimm was not an issue. The device is a slave to a Host system which \
controls a variety of devices within this building. Since I was "spinning" a PCB for \
this application, I thought that I could have some fun by adding the uCsimm and other \
interfaces so as to maximize the use of the board.
4. As for temperature range... The device should be able to operate from -20C to \
+85C in its intended application (no uCsimm, etc). In the this building control \
application, the temperature range is really +15C to +30C approx., so even the uCsimm \
could be used to control this device!
5. As for temperature test results, I have access to a temperature chamber (for \
free... it's nice to have friends that have nice equipment) should I feel the need to \
qualify the temperature extremes.
One could qualify the uCsimm for its temperature extremes, but as Sergei pointed out \
the '328 is only rated between 0C to +70C. Thus, trying to push those limits would \
not be a choice that I would make.
Anyway, I hope this clarifies my previous post and I apologize for any \
misinterpretations.
Cheers,
Sam
Sam Saprunoff
sams2@telusplanet.net
----- Original Message -----
From: Tom Walsh
To: ucsimm@uClinux.com
Sent: Wednesday, February 23, 2000 5:44 PM
Subject: Re: [uCsimm] miniLinux and Announcing an Industrial I/O board foruCsimm
Sergei Sharonov wrote:
> Well, this can be endless, but I have one example which I am
> in the final
> stages of alpha-testing. I have designed an industrial grade
> Input/Output
> board that accepts the uCSimm as the primary controller.
As far as I understand uCsimm is not specified for industrial temperature
range. I also believe that DragonBall itself is only specified for 0-70 C.
Not sure about other parts (memory, Ethernet, etc.) Did you qualify the
module yourself? And if so, could you please post your test results?
Best regards,
Sergei A. Sharonov, project manager
Daniel Measurement & Control
9753 Pine Lake Drive
Houston, TX 77055
(713)827-4346
ssharono@danielind.com
Perhaps he really meant to say was "industrial strenght"? ;^)
TomW
This message resent by the ucsimm@uclinux.com list server http://www.uClinux.com/
--
Tom Walsh - WN3L - Embedded Systems Consultant - tom over_at mytoys(.)com
'www.mytoys.com', 'www.openhardware.net', 'www.cyberiansoftware.com'
"Windows? No thanks, I have work to do..."
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<DIV><FONT face=Arial size=2>Thanks Tom for the correct interpretation of my
sentence!</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>In regards to the term Industrial Grade, it was
intended to be of an Industrial strength or features. I, by no means,
intended it to be interpreted as having full Industrial temperature
rating. However, why I say Industrial Strength (grade, type, etc)
is:</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2> 1. It is not a commercial
unit. The components used are of higher strength, durability, and/or
greater temperature ranges (High quality, high insertion cycle connectors,
etc). The components selected are not necessarily based upon the least
expensive part for the job (i.e. lowest production cost was not my greatest
concern... high reliability, ease and bullet-proof of installation, etc are my
issues)</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2> 2. Since this device is to be
used in a electrical "dirty" environment, the Vin section has additional
protection circuitry to minimize problems. The exact environment is a
large(36 floor) commercial office tower. This electrical "dirty"
environment can (and usually does) carry over to the input section, the
opto-inputs use a current-loop interface to minimize the effects of induced by
this noise, etc. Hence, I can have longer cable runs, and less false
alarms (none... hooray).</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2> 3. The device was designed for a
specific application and for backward compatibility (where the uCsimm is
not currently used). Thus, the temperature range of the uCsimm was not an
issue. The device is a slave to a Host system which controls a
variety of devices within this building.</FONT></DIV>
<DIV><FONT face=Arial size=2> Since I was "spinning" a PCB for this
application, I thought that I could have some fun by adding the uCsimm and other
interfaces so as to maximize the use of the board.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2> 4. As for temperature range...
The device should be able to operate from -20C to +85C in its intended
application (no uCsimm, etc). In the this building control application,
the temperature range is really +15C to +30C approx., so even the uCsimm could
be used to control this device!</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2> 5. As for temperature test
results, I have access to a temperature chamber (for free... it's nice to
have friends that have nice equipment) should I feel the need to
qualify the temperature extremes. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>One could qualify the uCsimm for its temperature
extremes, but as Sergei pointed out the '328 is only rated between 0C to
+70C. Thus, trying to push those limits would not be a choice
that I would make. </FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Anyway, I hope this clarifies my previous post and
I apologize for any misinterpretations.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Cheers,</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Sam</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Sam Saprunoff<BR><A
href="mailto:sams2@telusplanet.net">sams2@telusplanet.net</A></FONT></DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; \
PADDING-LEFT: 5px; PADDING-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original \
Message ----- </DIV> <DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A href="mailto:tom@cyberiansoftware.com" title=tom@cyberiansoftware.com>Tom
Walsh</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A href="mailto:ucsimm@uClinux.com"
title=ucsimm@uClinux.com>ucsimm@uClinux.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, February 23, 2000 5:44
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [uCsimm] miniLinux and
Announcing an Industrial I/O board foruCsimm</DIV>
<DIV><BR></DIV>Sergei Sharonov wrote:
<BLOCKQUOTE TYPE="CITE">> Well, this can be endless, but I have one
example which I am <BR>> in the final <BR>> stages of
alpha-testing. I have designed an industrial grade <BR>>
Input/Output <BR>> board that accepts the uCSimm as the primary
controller.
<P>As far as I understand uCsimm is not specified for industrial temperature
<BR>range. I also believe that DragonBall itself is only specified for 0-70
C. <BR>Not sure about other parts (memory, Ethernet, etc.) Did you qualify
the <BR>module yourself? And if so, could you please post your test results?
<P>Best regards,
<P>Sergei A. Sharonov, project manager <BR>Daniel Measurement & Control
<BR>9753 Pine Lake Drive <BR>Houston, TX 77055 <BR>(713)827-4346
<BR>ssharono@danielind.com <BR> </P></BLOCKQUOTE>
<P><BR>Perhaps he really meant to say was "industrial strenght"? ;^)
<BR>
<P>TomW <BR> <BR>
<BLOCKQUOTE TYPE="CITE">This message resent by the ucsimm@uclinux.com list
server <A
href="http://www.uClinux.com/">http://www.uClinux.com/</A></BLOCKQUOTE><PRE>--
Tom Walsh - WN3L - Embedded Systems Consultant - tom over_at mytoys(.)com
'www.mytoys.com', 'www.openhardware.net', 'www.cyberiansoftware.com'
"Windows? No thanks, I have work to do..."</PRE>
</BLOCKQUOTE></BODY></HTML>
This message resent by the ucsimm@uclinux.com list server http://www.uClinux.com/
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